OPTIMOD 6300 DIGITAL
TECHNICAL DATA
6-11
rent-limited, the fuse will usually open only if the power supply fails.
Be sure to dis-
connect your Optimod from AC power before replacing the fuse!
Because of safety and EMI suppression requirements in the power supply, there are
no user-serviceable parts in it. In case of failure, replace the entire supply with an
Orban-supplied replacement (Orban part number 29270.000.01.1), which ensures
that your Optimod will continue to meet all regulatory requirements for safety and
emissions.
Abbreviations
Some of the abbreviations used in this manual may not be familiar to all readers:
A/D (or A to D)
analog-to-digital converter
AES
Audio Engineering Society
AGC
automatic gain control
A-I analog
input
A-O analog
output
BAL
balanced (refers to an audio connection with two active conductors and one shield sur-
rounding them).
BBC
British Broadcasting Corporation
BNC
a type of RF connector
CALIB calibrate
CIT
composite isolation transformer
CMOS
complementary metal-oxide semiconductor
COFDM
Coded Orthogonal Frequency Division Multiplex—a robust type of digital modulation using
many narrow-bandwidth, low data rate, mutually non-interfering carriers to achieve an ag-
gregate high data rate with excellent multipath rejection.
COM
serial data communications port
D/A (or D to A)
digital-to-analog converter
dBm
decibel power measurement. 0 dBm = 1mW applied to a specified load. In audio, the load
is usually 600
. In this case only, 0 dBm = 0.775V rms.
dBu
decibel voltage measurement. 0 dBu = 0.775V RMS. For this application, the dBm-into-
600
scale on voltmeters can be read as if it were calibrated in dBu.
DI digital
input
DJ
disk jockey, an announcer who plays records in a club or on the air
DO digital
output
DOS
Microsoft disk operating system for IBM-compatible PC
DSP
digital signal processor (or processing). May also refer to a special type of microprocessor
optimized for efficiently executing arithmetic.
EBU
European Broadcasting Union
EBS
Emergency Broadcasting System (U.S.A.)
EMI electromagnetic
interference
ESC escape
FCC
Federal Communications Commission (USA regulatory agency)
FDNR
frequency-dependent negative resistor
an element used in RC-active filters
FET
field effect transistor
FFT
fast Fourier transform
FIFO first-in,
first-out
Содержание OPTIMOD 6300
Страница 1: ...Operating Manual OPTIMOD 6300 Digital Multipurpose Audio Processor Version 1 1 Software ...
Страница 7: ...Operating Manual OPTIMOD 6300 Digital Multipurpose Audio Processor Version 1 1 Software ...
Страница 22: ......
Страница 48: ......
Страница 94: ...2 46 INSTALLATION ORBAN MODEL 6300 ...
Страница 118: ......
Страница 200: ......
Страница 214: ......
Страница 236: ...6 22 TECHNICAL DATA ORBAN MODEL 6300 CONTROL BOARD PARTS LOCATOR ...
Страница 242: ...6 28 TECHNICAL DATA ORBAN MODEL 6300 I O DSP BOARD PARTS LOCATOR ...
Страница 252: ...6 38 TECHNICAL DATA ORBAN MODEL 6300 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM ...
Страница 255: ...OPTIMOD 6300 DIGITAL TECHNICAL DATA 6 41 ...